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Here is your example HTML in the testing tool. Works perfectly fine for me, with everything you say is a problem recognized, and no warning: The example code from Google's docs does display the warning, but that's because of a syntax error which is breaking the markup: <img class="photo" src="anvil_executive.jpg /> Note the src attribute is ...

Google recommends using microdata, but it does support three formats: microdata, microformats, and RDFa. A big reason to choose microdata would be that the examples that Google gives on it's website and those on schema.org are in the microdata format. Here is a site that has a huge table of the various advantages and disadvantages of the three formats. ...

There is no schema entry for FAQ, you most likely best of adding it as a 'WebPage'. or using the about. It's not required to use rich snippets for all pages. It holds little SEO weight if any. Google will be able to establish it as a FAQ page without any markup of this type.

No using RDFa, microdata, richsnippets, and HTML5 does not help your rankings in search engines. If you use Google rich snippet testing tool they'll actually tell you if a page will potentially appear in search results with rich snippets or not. For example a page using hCard but with a lot of other content on that page google may determine the main ...